EP2097199A1 - Dispositif pendulaire et procédé associé - Google Patents
Dispositif pendulaire et procédé associéInfo
- Publication number
- EP2097199A1 EP2097199A1 EP07801287A EP07801287A EP2097199A1 EP 2097199 A1 EP2097199 A1 EP 2097199A1 EP 07801287 A EP07801287 A EP 07801287A EP 07801287 A EP07801287 A EP 07801287A EP 2097199 A1 EP2097199 A1 EP 2097199A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pendulum
- clamping
- chuck
- system pendulum
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/1627—Details of the jaws
- B23B31/16275—Form of the jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/22—Compensating chucks, i.e. with means for the compensation of irregularities of form or position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/10—Expanding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/10—Expanding
- Y10T279/1083—Jaw structure
- Y10T279/1095—Pivoted
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17666—Radially reciprocating jaws
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/18—Pivoted jaw
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/22—Double acting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/34—Accessory or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49998—Work holding
Definitions
- the invention relates to a system pendulum device for a chuck and a method for clamping workpieces with a pendulum element and a base element, wherein the pendulum element is axially pivotally connected via an element connection device with the base element, a pivoting range ⁇ of the pendulum element by means of a limiting device can be limited and the shuttle in a center position of the swivel range is recoverable by means of a return device. Furthermore, the invention relates to a chuck comprising system pendulum devices.
- System pendulum devices and clamping methods of the type mentioned are well known and are used for low-distortion clamping thin-walled rings, for example, rolling blanks for ball bearing manufacturing, or for clamping non-circular workpieces.
- the known chucks generally have three pendulum devices, each with two clamping elements.
- System pendulum devices are preferably also used on hydraulically actuated chucks, these chucks have a small clamping stroke.
- the system pendulum fixtures oscillate in such a way that the clamping jaws, which are located in pairs on the upper side, rest against the workpiece with almost the same pressure, which reduces deviations in shape of the workpiece. Due to the design of the pendulum jaws, however, the diameter range of workpieces to be machined is limited, so that several pendulum jaws of different sizes are required for the clamping range of the chuck and so economic processing is only possible at high quantities.
- pendulum chuck with system pendulum devices are known in which the system pendulum device is connected via an axis of rotation with the pendulum chuck, wherein the pendulum stroke is limited by a pin tangent to the axis of rotation and conical recesses in the axis of rotation.
- the system pendulum device also has clamping inserts permanently mounted to the system shuttle between which a workpiece can be clamped.
- An adaptation of the system pendulum device to different workpiece diameter is carried out by a radial adjustment of the system pendulum device to a workpiece axis of rotation about the pendulum chuck. This limits the clamping range of the pendulum chuck to a small diameter range.
- Next is a provision of the system pendulum device in a center position by means of two resilient locking pins.
- the object of the present invention is to propose a system pendulum device for a chuck and a method for clamping workpieces with which workpieces can be clamped within a large diameter range on inner as well as on outer diameters, subsequent machining of workpieces with the same Chucks are possible, the system pendulum device is universally applicable to commercial chucks and overall cost-effective machining of workpieces is possible.
- This object is achieved by a system pendulum device having the features of claim 1, a chuck having the features of claim 17 and a method having the features of claim 18.
- the system pendulum device according to the invention for a chuck or the like has a pendulum element and a base element, wherein the pendulum element is axially pivotally connected via an element connection device with the base element, a pivoting range ⁇ of the pendulum element by means of a limiting device can be limited and the pendulum element in a central position of the pivoting range ⁇ mediate a restoring device can be reset, the pendulum element within the pivoting range ⁇ by means of a fixing device is fixed, the base element by means of a connection device to a jaw of a chuck is connected and the shuttle has a clamping device with two interchangeable clamping elements, which are displaceable and fixable.
- the base element can be connected by means of a connection device to a base jaw of a conventional chuck.
- the system pendulum device can be used universally on chucks without the base jaws of the chuck having to be exchanged.
- a relatively large diameter range for clamping workpieces can be realized by the radial adjustment of the system pendulum device on the base jaws of the chuck on the one hand and by the displaceable and fixable clamping elements of the clamping device of the shuttle.
- the element connection device has a rotary bearing.
- the pivot bearing allows a pivoting of the pendulum element relative to the base element, so that the pendulum element according to the surface of a workpiece for uniform clamping of the same can align.
- the rotary bearing is formed from a bolt.
- a bolt allows easy formation of a pivot axis between the shuttle and the base.
- the pivot bearing may be formed from the pendulum element and the base element.
- complementary inner or outer diameters can be formed on the pendulum element and on the base element, which can be inserted into one another and thus pivotably connect the pendulum element to the base element.
- a coupling device connects the pendulum element with the basic element in a form-fitting manner.
- the coupling device prevents falling apart of pendulum element and base element and ensures a resistance to the forces occurring during workpiece machining of both elements safely.
- the coupling device is designed as a bearing ring secured to the pendulum element.
- a bearing ring makes it possible in a suitable manner to absorb forces and to form a largely play-free pivoting connection between the pendulum element and the base element.
- An automatic return of a pendulum movement of the pendulum element relative to the base element is made possible when the restoring device is formed between the bearing ring and the base element.
- the restoring device has a spring-locking device with a latching element which engages in a recess recess recessed toward the center position of the pendulum element.
- the pendulum element can be removed after removal of a Automatically swing piece back into the center position. Also, the insertion and clamping of a workpiece, starting from the center position of the pendulum elements, facilitated.
- the fixing device has a screw connection for the rotationally fixed fixing of the pendulum element to the base element.
- the fixing device has a locking device for the rotationally fixed locking of the pendulum element in the middle position of the pivoting range.
- a center position of the pendulum element is easy to lock, so that, for example, follow-up work, such as the clamping on an already machined diameter of the workpiece, without long setting times or the change of a chuck are executable.
- the center position of the pendulum element can be fixed by a simple, positive pin connection.
- the locking device may be formed as a fitting screw connection. The pendulum element can thus be simultaneously locked and fixed.
- the clamping device of the pendulum element has two radially aligned to the chuck axis of rotation guide grooves on each outer edge region of the pendulum element for guiding the clamping elements.
- the guide grooves are arranged in a relative arrangement of, for example, 60 ° to one another and the pendulum element is mounted on the base jaw in such a way that the center axes of the guide grooves intersect the axis of rotation of the chuck, this can be achieved by fixing the clamping elements on the guide grooves in the same way Clamp the workpiece within a relatively large diameter range. Since the clamping elements can be fixed speaking, are located on the workpiece-facing side of the system pendulum element no moving components. Faults due to contamination during operation are therefore essentially excluded.
- the guide grooves have a latching toothing for latching the clamping elements designed as clamping jaws with matching latching toothing.
- the jaws can be rotated by disassembly and reassembly by 180 °, so that a workpiece can be clamped on an inner as well as an outer diameter.
- the limiting device has a pin connection with a free end of a pin whose range of motion is limited by an inner wall of a recess.
- the inner wall of the recess thus serves as a stop for the pin and limits the pivoting range ⁇ of the pendulum element relative to the base element within a meaningful for clamping workpieces angular distance.
- connection device for connecting the base element to a base jaw of a chuck has a screw-nut connection for displacing and fixing the base element to the base jaw
- the system pendulum device can be mounted on base jaws of conventional chucks without requiring replacement of the base jaws of the chuck.
- the pendulum element has at least one contact surface, which can be adjusted in the axial direction, for abutment of a workpiece.
- the chuck according to the invention for clamping workpieces or the like comprises at least three system pendulum devices, the system pendulum devices each being displaceable and fixable to jaws of the chuck by means of a connection device. This results in a simple adjustment of the system pendulum devices on a rotational axis of the chuck and on different diameters of workpieces, wherein a clamping of the workpiece by means of the movable base jaws of the chuck and the attached system pendulum devices takes place.
- a chuck with at least three system pendulum devices is used for clamping a workpiece.
- Fig. 1 a broken plan view of a chuck with system pendulum devices in the direction of the axis of rotation;
- FIG. 2 shows a sectional view of a system pendulum device with a partial section of the chuck taken along a line II-II from FIG. 1;
- FIG. 3 shows a half section of the system pendulum device with a partial section of the chuck along a line III-III from FIG. 4; 4 shows a sectional view of the system pendulum device along a line IV-IV from FIG. 3.
- Fig. 1 shows a chuck 10 with a chuck housing 1 1 and a through hole 12 for the passage of workpieces and system pendulum devices 13, which are fixed to not visible in this view base jaws 25 in the chuck housing 1 1.
- the system pendulum devices 13 are aligned relative to a pivot 14 of the chuck 10 by the base jaws 25 of the chuck
- a pendulum element 16 of one of the system pendulum devices 13 has two guide grooves 17, which are formed on the pendulum element 16 in the radial direction to the axis of rotation 14.
- the guide grooves 17 have a detent toothing 18, shown as an indication, in each of which a tensioning jaw 19 designed as a clamping element 20 is inserted with a matching trained locking teeth.
- the clamping jaws 19 are fastened by means of screws 21 and not shown sliding blocks in the guide groove 17.
- the clamping jaws 19 are so easily adjustable to a uniform diameter and can be rotated by disassembly and reassembly by 180 °, so that an inner as well as an outer diameter of a workpiece with the chuck 10 can be tensioned.
- the assembly of the system pendulum device 13 on the not visible here base jaws 25 of the chuck 10 takes place by means of screws 22.
- a center position of the shuttle 16 can be fixed by means of screws 23.
- the center position of the system pendulum device 13 shown in FIG. 1 can additionally be locked by a pin 24.
- the system pendulum device 13 is mounted on the base jaw 25 with a latching toothing 26 and is fastened via sliding blocks 27 in a groove 28 of the base jaw 25 with the screws 22.
- the base jaw 25 is again in a groove 29 of the chuck housing 1 1 received linearly movable.
- the system pendulum device 13 is further composed of a base element 30 and the pendulum element 16, wherein the pendulum element 16 is rotatably connected to the base member 30 via a pin 31 about the pivot axis 15 and, secured by a ring 32, largely without axial play on the base member 30th is applied.
- the ring 32 is connected by screws 33 with the shuttle 16.
- a spring locking device 34 is screwed in the ring 32.
- the pendulum element 16 and the base member 30 are provided with through holes 35, in which the screws 22 are used. To avoid contamination, the through holes 35 are sealed with caps 36.
- FIG. 3 A half-section of the system pendulum device 13 along a line III-III from FIG. 4 is shown in FIG. 3.
- a screw 37 with a stop surface 38 is inserted in the pendulum element 16.
- the abutment surface 38 is used to create workpieces that can be tensioned by the system pendulum device 13, the distance between the abutment surface 38 and the pendulum element 16 being adjustable by means of the screw 37.
- workpieces can be brought to the same level at three support points.
- FIG. 4 shows a sectional view along a line IV-IV from FIG. 3.
- the ring 32 completely surrounds the base element 30 and is connected to the pendulum element 16 via the screws 33.
- the bolt 31 is used as a pivot axis 15, and a pivoting range ⁇ of the shuttle 16 to the base member 30 is limited by a limiting device 39.
- the limiting device 39 has a recess 40 in the base member 30 and a pin 41 which is fixed in the shuttle member 16 and movable in the recess 40. By conditioning the pin 41 on an inner wall 42 of the recess 40, the pivoting range ⁇ of the pendulum element 16 is limited.
- the base member 30 has a bore 43 for the pin 24 for locking the center position of the pendulum element 16 and threaded holes 44 for screwing the screws 23 are provided.
- the spring latching device 34 is used as a screw 45 with a locking member 46, wherein the locking member 46 engages in a center position of the pendulum member 16 recessed recess 47 in the base member 30.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Jigs For Machine Tools (AREA)
- Clamps And Clips (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006043730A DE102006043730B3 (de) | 2006-09-13 | 2006-09-13 | Systempendelvorrichtung für ein Spannfutter zum Spannen von Werkstücken und Spannfutter |
PCT/DE2007/001550 WO2008031392A1 (fr) | 2006-09-13 | 2007-08-30 | Dispositif pendulaire et procédé associé |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2097199A1 true EP2097199A1 (fr) | 2009-09-09 |
EP2097199B1 EP2097199B1 (fr) | 2012-12-26 |
Family
ID=38859685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07801287A Active EP2097199B1 (fr) | 2006-09-13 | 2007-08-30 | Dispositif pendulaire et procédé associé |
Country Status (5)
Country | Link |
---|---|
US (1) | US8578588B2 (fr) |
EP (1) | EP2097199B1 (fr) |
DE (1) | DE102006043730B3 (fr) |
ES (1) | ES2398726T3 (fr) |
WO (1) | WO2008031392A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009050140B4 (de) * | 2009-09-07 | 2012-01-19 | Birgitt Karlein | Spannfutter mit Klemmeinrichtung |
EP2566644B1 (fr) | 2010-05-05 | 2015-04-29 | Karlein, Birgit | Mandrin centré |
US8733764B1 (en) * | 2012-11-03 | 2014-05-27 | Paul Eugene Stafford | Multiple pivoted lathe chuck jaw assembly |
CN110842238A (zh) * | 2019-11-22 | 2020-02-28 | 南京信息职业技术学院 | 多圆柱件同步定心夹紧装置 |
US11850667B2 (en) | 2020-10-28 | 2023-12-26 | Bradley D. O'Connell | Chuck jaw stopping mechanism |
CN113751742B (zh) * | 2021-10-08 | 2022-11-04 | 湖南金源柯重工科技有限公司 | 一种双卡盘固定的数控加工设备 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2514472A (en) * | 1944-12-18 | 1950-07-11 | Bullard Co | Chuck |
US2815959A (en) * | 1955-08-05 | 1957-12-10 | Allis Chalmers Mfg Co | Swivel jaw for chucking irregular surfaced workpieces |
US3420538A (en) * | 1966-01-21 | 1969-01-07 | Erickson Tool Co | Swivel finger chuck |
US3864805A (en) * | 1972-09-21 | 1975-02-11 | Edward O Klukos | Machine for indexing and screw-mounting objects to a work piece |
US4215605A (en) * | 1978-11-03 | 1980-08-05 | N. A. Woodworth Company | Floating work driver chuck |
US4316614A (en) * | 1980-01-07 | 1982-02-23 | Eaton Corporation | Holding chuck |
US4431202A (en) * | 1982-04-05 | 1984-02-14 | J. & S. Tool Company | Pivoted jaw members |
DE3434009A1 (de) * | 1984-09-15 | 1986-03-27 | Index-Werke Kg Hahn & Tessky, 7300 Esslingen | Werkstueck-handhabungsgeraet |
US4631987A (en) * | 1985-07-29 | 1986-12-30 | Buck David A | Power tongs |
US5137287A (en) * | 1991-02-13 | 1992-08-11 | Deere & Company | Pivoted chucking jaws with low friction rollers |
US5409242A (en) * | 1992-01-02 | 1995-04-25 | Gonnocci; Ralph J. | Swivel mountings for a power chuck |
US5184833A (en) * | 1992-01-02 | 1993-02-09 | Kenneth Cross | Power chuck |
JP3194367B2 (ja) | 1997-07-31 | 2001-07-30 | 豊和工業株式会社 | チャック |
US6264210B1 (en) * | 1998-09-04 | 2001-07-24 | Hardinge Inc. | Quick-change jaw chuck system |
DE19921528A1 (de) * | 1999-05-11 | 2000-11-16 | Stiefelmayer Gmbh & Co Kg C | Spanneinrichtung für Gegenstände, z. B. für zu bearbeitende Werkstücke |
JP4216406B2 (ja) * | 1999-06-08 | 2009-01-28 | 帝国チャック株式会社 | 引き込み式チャック |
DE19934375B4 (de) * | 1999-07-22 | 2006-07-20 | Schunk Gmbh & Co. Kg Fabrik Für Spann- Und Greifwerkzeuge | Spannfutter |
US6655699B2 (en) * | 2002-01-11 | 2003-12-02 | Illinois Tool Works Inc. | Six jaw equalizing chuck |
US6568694B1 (en) * | 2002-07-12 | 2003-05-27 | Phillip A. White | Adjustable workholding jaw assemblies |
US6910693B2 (en) * | 2003-01-17 | 2005-06-28 | Mp Tool & Engineering, Co. | Draw down chuck |
-
2006
- 2006-09-13 DE DE102006043730A patent/DE102006043730B3/de not_active Expired - Fee Related
-
2007
- 2007-08-30 EP EP07801287A patent/EP2097199B1/fr active Active
- 2007-08-30 US US12/522,343 patent/US8578588B2/en active Active
- 2007-08-30 WO PCT/DE2007/001550 patent/WO2008031392A1/fr active Application Filing
- 2007-08-30 ES ES07801287T patent/ES2398726T3/es active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2008031392A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20100038866A1 (en) | 2010-02-18 |
ES2398726T3 (es) | 2013-03-21 |
EP2097199B1 (fr) | 2012-12-26 |
US8578588B2 (en) | 2013-11-12 |
DE102006043730B3 (de) | 2008-01-31 |
WO2008031392A1 (fr) | 2008-03-20 |
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